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Abstract：
The present study investigates the effects of Er3+ doping content on the microstructure and up-conversion emission properties of CaTiO3: Er3+ phosphors as a potential material in biomedical applications. The CaTiO3: x%Er3+ (x = 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0%) films were synthesized on Ti substrates by a hydrothermal reaction at 200 °C for 24 h. The SEM image showed the formation of cubic nanorod CaTiO3: Er3+ films with a mean edge size value of (1-5) μm. When excited with 980 nm light, the CaTiO3: Er3+ films emitted a strong green band and a weak red band of Er3+ ions located at 543, 661, and 740 nm. The CaTiO3: Er3+ film exhibited excellent surface hydrophilicity with a contact angle of ~zero and good biocompatibility against baby hamster kidney (BHK) cells. CaTiO3: Er3+ films emerge as promising materials for different applications in the biomedical field.
摘要：
本研究研究了Er3掺杂含量对CaTiO3的微观结构和上转换发射性能的影响：Er3荧光粉作为生物医学应用中的潜在材料。通过在200°C下进行24小时的水热反应，在Ti衬底上合成了CaTiO3：x％Er3（x=0.5、1.0、1.5、2.0、2.5和3.0％）薄膜。SEM图像显示形成了立方纳米棒CaTiO3：Er3薄膜，平均边缘尺寸值为（1-5）μm。当用980nm光激发时，CaTiO3:Er3+薄膜发射位于543、661和740nm的Er3+离子的强绿色带和弱红色带。CaTiO3：Er3膜表现出优异的表面亲水性，接触角为〜零，对小仓鼠肾（BHK）细胞具有良好的生物相容性。CaTiO3：Er3薄膜在生物医学领域的不同应用中成为有前途的材料。
